belly-button cum
belly-button cum is the pool of semen that collects in a guy's belly-button after he jacks off his morning wood and paints the wall -- the last of his cumshot dribbles out of his dick and flows into his belly-button.
Oh fuck -- I took care of my morning wood, but I got cum everywhere! -- on the wall behind me, in my hair, on my face, in my mouth, on my neck, tits, stomach, and even had a pool of belly-button cum.